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All results from a given calculation for HBBH (Diborane(2))

using model chemistry: wB97X-D/Def2TZVPP

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes D*H 3ΣG
Energy calculated at wB97X-D/Def2TZVPP
 hartrees
Energy at 0K-50.761868
Energy at 298.15K-50.761937
HF Energy-50.761868
Nuclear repulsion energy15.391821
The energy at 298.15K was derived from the energy at 0K and an integrated heat capacity that used the calculated vibrational frequencies.
Vibrational Frequencies calculated at wB97X-D/Def2TZVPP
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
4/u)
Dep P Dep U
1 Σg 2814 2688 0.00      
2 Σg 1276 1219 0.00      
3 Σu 2773 2648 29.25      
4 Πg 594 567 0.00      
4 Πg 594 567 0.00      
5 Πu 618 590 0.12      
5 Πu 618 590 0.12      

Unscaled Zero Point Vibrational Energy (zpe) 4641.9 cm-1
Scaled (by 0.9552) Zero Point Vibrational Energy (zpe) 4434.0 cm-1
See section III.C.1 List or set vibrational scaling factors to change the scale factors used here.
See section III.C.2 Calculate a vibrational scaling factor for a given set of molecules to determine the least squares best scaling factor.
Rotational Constants (cm-1) from geometry optimized at wB97X-D/Def2TZVPP
B
0.84310

See section I.F.4 to change rotational constant units
Geometric Data calculated at wB97X-D/Def2TZVPP

Point Group is D∞h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
B1 0.000 0.000 0.753
B2 0.000 0.000 -0.753
H3 0.000 0.000 1.929
H4 0.000 0.000 -1.929

Atom - Atom Distances (Å)
  B1 B2 H3 H4
B11.50661.17582.6823
B21.50662.68231.1758
H31.17582.68233.8581
H42.68231.17583.8581

picture of Diborane(2) state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
B1 B2 H4 180.000 B2 B1 H3 180.000
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at wB97X-D/Def2TZVPP Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 B -0.120      
2 B -0.120      
3 H 0.120      
4 H 0.120      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.000 0.000 0.000 0.000
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -14.003 0.000 0.000
y 0.000 -14.003 0.000
z 0.000 0.000 -12.303
Traceless
 xyz
x -0.850 0.000 0.000
y 0.000 -0.850 0.000
z 0.000 0.000 1.700
Polar
3z2-r23.400
x2-y20.000
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.637 0.000 0.000
y 0.000 3.637 0.000
z 0.000 0.000 7.159


<r2> (average value of r2) Å2
<r2> 21.509
(<r2>)1/2 4.638